385 lines
16 KiB
TypeScript
385 lines
16 KiB
TypeScript
import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
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import {Parser, Lexer} from 'angular2/src/core/change_detection/change_detection';
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import {TemplateParser, splitClasses} from 'angular2/src/compiler/template_parser';
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import {HtmlParser} from 'angular2/src/compiler/html_parser';
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import {DirectiveMetadata, ComponentMetadata, TypeMeta} from 'angular2/src/compiler/api';
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import {
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templateVisitAll,
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TemplateAstVisitor,
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TemplateAst,
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NgContentAst,
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EmbeddedTemplateAst,
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ElementAst,
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VariableAst,
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BoundEventAst,
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BoundPropertyAst,
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AttrAst,
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BoundTextAst,
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TextAst
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} from 'angular2/src/compiler/template_ast';
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import {Unparser} from '../core/change_detection/parser/unparser';
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var expressionUnparser = new Unparser();
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export function main() {
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describe('TemplateParser', () => {
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var domParser: HtmlParser;
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var parser: TemplateParser;
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beforeEach(() => {
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domParser = new HtmlParser();
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parser = new TemplateParser(new Parser(new Lexer()));
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});
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function parse(template: string, directives: DirectiveMetadata[]): TemplateAst[] {
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return parser.parse(domParser.parse(template, 'TestComp'), directives);
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}
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describe('parse', () => {
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describe('nodes without bindings', () => {
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it('should parse text nodes', () => {
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expect(humanizeTemplateAsts(parse('a', [])))
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.toEqual([[TextAst, 'a', 'TestComp > #text(a):nth-child(0)']]);
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});
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it('should parse elements with attributes', () => {
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expect(humanizeTemplateAsts(parse('<div a=b>', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[AttrAst, 'a', 'b', 'TestComp > div:nth-child(0)[a=b]']
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]);
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});
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});
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it('should parse ngContent', () => {
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var parsed = parse('<ng-content select="a">', []);
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expect(humanizeTemplateAsts(parsed))
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.toEqual([[NgContentAst, 'a', 'TestComp > ng-content:nth-child(0)']]);
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});
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it('should parse bound text nodes', () => {
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expect(humanizeTemplateAsts(parse('{{a}}', [])))
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.toEqual([[BoundTextAst, '{{ a }}', 'TestComp > #text({{a}}):nth-child(0)']]);
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});
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describe('property, event and variable bindings', () => {
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it('should parse bound properties via [...] and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div [prop]="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'prop', 'v', 'TestComp > div:nth-child(0)[[prop]=v]']
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]);
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});
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it('should camel case bound properties', () => {
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expect(humanizeTemplateAsts(parse('<div [some-prop]="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'someProp', 'v', 'TestComp > div:nth-child(0)[[some-prop]=v]']
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]);
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});
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it('should parse bound properties via bind- and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div bind-prop="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'prop', 'v', 'TestComp > div:nth-child(0)[bind-prop=v]']
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]);
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});
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it('should parse bound properties via {{...}} and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div prop="{{v}}">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'prop', '{{ v }}', 'TestComp > div:nth-child(0)[prop={{v}}]']
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]);
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});
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it('should parse bound events via (...) and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div (event)="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundEventAst, 'event', 'v', 'TestComp > div:nth-child(0)[(event)=v]']
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]);
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});
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it('should camel case event names', () => {
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expect(humanizeTemplateAsts(parse('<div (some-event)="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundEventAst, 'someEvent', 'v', 'TestComp > div:nth-child(0)[(some-event)=v]']
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]);
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});
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it('should parse bound events via on- and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div on-event="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundEventAst, 'event', 'v', 'TestComp > div:nth-child(0)[on-event=v]']
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]);
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});
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it('should parse bound events and properties via [(...)] and not report them as attributes',
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() => {
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expect(humanizeTemplateAsts(parse('<div [(prop)]="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'prop', 'v', 'TestComp > div:nth-child(0)[[(prop)]=v]'],
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[
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BoundEventAst,
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'prop',
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'v = $event',
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'TestComp > div:nth-child(0)[[(prop)]=v]'
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]
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]);
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});
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it('should parse bound events and properties via bindon- and not report them as attributes',
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() => {
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expect(humanizeTemplateAsts(parse('<div bindon-prop="v">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'prop', 'v', 'TestComp > div:nth-child(0)[bindon-prop=v]'],
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[
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BoundEventAst,
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'prop',
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'v = $event',
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'TestComp > div:nth-child(0)[bindon-prop=v]'
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]
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]);
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});
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it('should parse variables via #... and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div #a="b">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[#a=b]']
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]);
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});
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it('should parse variables via var-... and not report them as attributes', () => {
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expect(humanizeTemplateAsts(parse('<div var-a="b">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[var-a=b]']
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]);
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});
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it('should camel case variables', () => {
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expect(humanizeTemplateAsts(parse('<div var-some-a="b">', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'someA', 'b', 'TestComp > div:nth-child(0)[var-some-a=b]']
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]);
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});
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it('should use $implicit as variable name if none was specified', () => {
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expect(humanizeTemplateAsts(parse('<div var-a>', [])))
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.toEqual([
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[ElementAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', '$implicit', 'TestComp > div:nth-child(0)[var-a=]']
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]);
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});
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});
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describe('directives', () => {
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it('should locate directives ordered by typeName and components first', () => {
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var dirA =
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new DirectiveMetadata({selector: '[a=b]', type: new TypeMeta({typeName: 'DirA'})});
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var dirB =
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new DirectiveMetadata({selector: '[a]', type: new TypeMeta({typeName: 'DirB'})});
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var comp =
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new ComponentMetadata({selector: 'div', type: new TypeMeta({typeName: 'ZComp'})});
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expect(humanizeTemplateAsts(parse('<div a="b">', [dirB, dirA, comp])))
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.toEqual([
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[ElementAst, [comp, dirA, dirB], 'TestComp > div:nth-child(0)'],
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[AttrAst, 'a', 'b', 'TestComp > div:nth-child(0)[a=b]']
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]);
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});
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it('should locate directives in property bindings', () => {
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var dirA =
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new DirectiveMetadata({selector: '[a=b]', type: new TypeMeta({typeName: 'DirA'})});
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var dirB =
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new DirectiveMetadata({selector: '[b]', type: new TypeMeta({typeName: 'DirB'})});
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expect(humanizeTemplateAsts(parse('<div [a]="b">', [dirA, dirB])))
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.toEqual([
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[ElementAst, [dirA], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'a', 'b', 'TestComp > div:nth-child(0)[[a]=b]']
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]);
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});
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it('should locate directives in variable bindings', () => {
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var dirA =
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new DirectiveMetadata({selector: '[a=b]', type: new TypeMeta({typeName: 'DirA'})});
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var dirB =
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new DirectiveMetadata({selector: '[b]', type: new TypeMeta({typeName: 'DirB'})});
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expect(humanizeTemplateAsts(parse('<div #a="b">', [dirA, dirB])))
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.toEqual([
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[ElementAst, [dirA], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[#a=b]']
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]);
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});
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});
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describe('explicit templates', () => {
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it('should create embedded templates for <template> elements', () => {
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expect(humanizeTemplateAsts(parse('<template></template>', [])))
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.toEqual([[EmbeddedTemplateAst, [], 'TestComp > template:nth-child(0)']]);
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});
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});
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describe('inline templates', () => {
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it('should wrap the element into an EmbeddedTemplateAST', () => {
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expect(humanizeTemplateAsts(parse('<div template>', [])))
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.toEqual([
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[EmbeddedTemplateAst, [], 'TestComp > div:nth-child(0)'],
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[ElementAst, [], 'TestComp > div:nth-child(0)']
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]);
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});
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it('should parse bound properties', () => {
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expect(humanizeTemplateAsts(parse('<div template="ngIf test">', [])))
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.toEqual([
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[EmbeddedTemplateAst, [], 'TestComp > div:nth-child(0)'],
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[
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BoundPropertyAst,
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'ngIf',
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'test',
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'TestComp > div:nth-child(0)[template=ngIf test]'
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],
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[ElementAst, [], 'TestComp > div:nth-child(0)']
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]);
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});
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it('should parse variables via #...', () => {
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expect(humanizeTemplateAsts(parse('<div template="ngIf #a=b">', [])))
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.toEqual([
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[EmbeddedTemplateAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[template=ngIf #a=b]'],
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[ElementAst, [], 'TestComp > div:nth-child(0)']
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]);
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});
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it('should parse variables via var ...', () => {
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expect(humanizeTemplateAsts(parse('<div template="ngIf var a=b">', [])))
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.toEqual([
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[EmbeddedTemplateAst, [], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[template=ngIf var a=b]'],
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[ElementAst, [], 'TestComp > div:nth-child(0)']
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]);
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});
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describe('directives', () => {
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it('should locate directives in property bindings', () => {
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var dirA =
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new DirectiveMetadata({selector: '[a=b]', type: new TypeMeta({typeName: 'DirA'})});
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var dirB =
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new DirectiveMetadata({selector: '[b]', type: new TypeMeta({typeName: 'DirB'})});
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expect(humanizeTemplateAsts(parse('<div template="a b" b>', [dirA, dirB])))
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.toEqual([
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[EmbeddedTemplateAst, [dirA], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'a', 'b', 'TestComp > div:nth-child(0)[template=a b]'],
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[ElementAst, [dirB], 'TestComp > div:nth-child(0)'],
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[AttrAst, 'b', '', 'TestComp > div:nth-child(0)[b=]']
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]);
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});
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it('should locate directives in variable bindings', () => {
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var dirA =
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new DirectiveMetadata({selector: '[a=b]', type: new TypeMeta({typeName: 'DirA'})});
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var dirB =
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new DirectiveMetadata({selector: '[b]', type: new TypeMeta({typeName: 'DirB'})});
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expect(humanizeTemplateAsts(parse('<div template="#a=b" b>', [dirA, dirB])))
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.toEqual([
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[EmbeddedTemplateAst, [dirA], 'TestComp > div:nth-child(0)'],
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[VariableAst, 'a', 'b', 'TestComp > div:nth-child(0)[template=#a=b]'],
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[ElementAst, [dirB], 'TestComp > div:nth-child(0)'],
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[AttrAst, 'b', '', 'TestComp > div:nth-child(0)[b=]']
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]);
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});
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});
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it('should work with *... and use the attribute name as property binding name', () => {
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expect(humanizeTemplateAsts(parse('<div *ng-if="test">', [])))
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.toEqual([
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[EmbeddedTemplateAst, [], 'TestComp > div:nth-child(0)'],
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[BoundPropertyAst, 'ngIf', 'test', 'TestComp > div:nth-child(0)[*ng-if=test]'],
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[ElementAst, [], 'TestComp > div:nth-child(0)']
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]);
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});
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});
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});
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describe('splitClasses', () => {
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it('should keep an empty class', () => { expect(splitClasses('a')).toEqual(['a']); });
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it('should split 2 classes', () => { expect(splitClasses('a b')).toEqual(['a', 'b']); });
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it('should trim classes', () => { expect(splitClasses(' a b ')).toEqual(['a', 'b']); });
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});
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});
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}
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export function humanizeTemplateAsts(templateAsts: TemplateAst[]): any[] {
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var humanizer = new TemplateHumanizer();
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templateVisitAll(humanizer, templateAsts);
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return humanizer.result;
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}
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class TemplateHumanizer implements TemplateAstVisitor {
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result: any[] = [];
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visitNgContent(ast: NgContentAst): any {
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this.result.push([NgContentAst, ast.select, ast.sourceInfo]);
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return null;
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}
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visitEmbeddedTemplate(ast: EmbeddedTemplateAst): any {
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this.result.push([EmbeddedTemplateAst, ast.directives, ast.sourceInfo]);
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templateVisitAll(this, ast.attrs);
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templateVisitAll(this, ast.properties);
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templateVisitAll(this, ast.vars);
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templateVisitAll(this, ast.children);
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return null;
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}
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visitElement(ast: ElementAst): any {
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this.result.push([ElementAst, ast.directives, ast.sourceInfo]);
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templateVisitAll(this, ast.attrs);
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templateVisitAll(this, ast.properties);
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templateVisitAll(this, ast.events);
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templateVisitAll(this, ast.vars);
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templateVisitAll(this, ast.children);
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return null;
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}
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visitVariable(ast: VariableAst): any {
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this.result.push([VariableAst, ast.name, ast.value, ast.sourceInfo]);
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return null;
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}
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visitEvent(ast: BoundEventAst): any {
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this.result.push(
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[BoundEventAst, ast.name, expressionUnparser.unparse(ast.handler), ast.sourceInfo]);
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return null;
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}
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visitProperty(ast: BoundPropertyAst): any {
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this.result.push(
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[BoundPropertyAst, ast.name, expressionUnparser.unparse(ast.value), ast.sourceInfo]);
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return null;
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}
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visitAttr(ast: AttrAst): any {
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this.result.push([AttrAst, ast.name, ast.value, ast.sourceInfo]);
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return null;
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}
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visitBoundText(ast: BoundTextAst): any {
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this.result.push([BoundTextAst, expressionUnparser.unparse(ast.value), ast.sourceInfo]);
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return null;
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}
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visitText(ast: TextAst): any {
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this.result.push([TextAst, ast.value, ast.sourceInfo]);
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return null;
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}
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} |